Commercial vehicle braking device

Abstract

The invention belongs to the field of automobile brake equipment, and particularly relates to a commercial vehicle brake device which comprises a supporting box body, a first brake mechanism, a second brake mechanism, a driving mechanism and a cooling mechanism, a horizontally-arranged rotating shaft penetrates through the supporting box body, a brake disc is fixedly arranged at one end of the rotating shaft, the cooling mechanism is arranged in the supporting box body, and a poke rod penetrates through the top of the supporting box body. The output end of the poke rod is connected with the cooling mechanism and the second braking mechanism, the second braking mechanism is arranged in the supporting box body, the braking end of the second braking mechanism is connected with the rotating shaft, the output end of the driving mechanism is connected with the poke rod and the first braking mechanism, and the braking end of the first braking mechanism is connected with the braking disc. When working, the driving mechanism can drive the first brake mechanism and the second brake mechanism to clamp the brake disc and the rotating shaft so as to achieve the braking purpose, and meanwhile, the driving mechanism also drives the water outlet to discharge water, so that the nozzle sprays water to cool a friction part.

Description

Technical Field

[0001] The invention belongs to the field of automobile braking equipment, and in particular relates to a commercial vehicle braking device. Background Art

[0002] At present, the number of traffic accidents that occur in the world every year has become an increasingly serious public hazard. One way to reduce this public hazard is to improve the braking mechanism of the car. The service braking mechanism of a light car is composed of a brake pedal, a booster, a brake master cylinder, a hydraulic pipeline, a wheel cylinder and a brake. This braking mechanism takes a long time to stop the car and is not suitable for use in emergency situations. At the same time, a single braking system may cause a certain braking system to be damaged, resulting in failure to brake, thus causing safety hazards. In addition, a large amount of heat will be generated as the braking proceeds, causing the braking system to soften and thus affecting the normal operation of the braking system. Summary of the invention

[0003] The object of the present invention is to provide a commercial vehicle brake device having two brake systems and a cooling system.

[0004] In order to achieve the above-mentioned invention object, the technical solution adopted by the present invention is:

[0005] A commercial vehicle braking device comprises a supporting box, a first brake mechanism, a second brake mechanism, a driving mechanism and a cooling mechanism. The supporting box is penetrated by a horizontally arranged rotating shaft, a brake disc is fixedly arranged at one end of the rotating shaft, the cooling mechanism is arranged in the supporting box, a toggle rod is penetrated at the top of the supporting box, an output end of the toggle rod is connected to the cooling mechanism and the second brake mechanism, the second brake mechanism is arranged in the supporting box, a braking end of the second brake mechanism is connected to the rotating shaft, an output end of the driving mechanism is connected to the toggle rod and the first brake mechanism, and a braking end of the first brake mechanism is connected to the brake disc.

[0006] Furthermore, the toggle rod includes a sliding rod, a cone is provided at the bottom of the sliding rod, and the large end of the cone is facing upward; the brake mechanism second includes two vertically arranged V-shaped connecting rods, the middle parts of the two connecting rods are rotatably connected to the fixing rod, and the two ends of the fixing rod are fixedly arranged on the two inner walls of the support box perpendicular to the rotating shaft, and the two connecting rods have symmetrically provided with fixing blocks on the side close to each other at the tops of the two connecting rods, and symmetrically provided with springs on the side away from each other at the tops of the two connecting rods, and the other ends of the two springs are respectively connected to the two inner walls parallel to the rotating shaft, and the two connecting rods have symmetrically provided with connecting blocks at the bottoms, and an arc groove is provided on the side close to each other of the two connecting blocks, a ring is fixed on the rotating shaft, and an arc brake pad with a size suitable for the ring is provided in the groove; the cone is located between the two fixing blocks, and when the cone moves downward, it drives the two fixing blocks away from each other so that the two brake pads abut against the ring.

[0007] Furthermore, a hollow column is vertically provided at the center of the top of the support box, and a through hole is provided on the top of the hollow column to connect to the inside of the support box; the toggle rod includes a sliding rod, a contact block is provided on the top of the sliding rod, a tooth portion is provided on the top of the contact block, a spring 2 is sleeved on the sliding rod, the sliding rod is slidably arranged in the through hole, and the two ends of the spring 2 are respectively connected to the bottom of the contact block and the top of the hollow column.

[0008] Furthermore, the driving mechanism includes a support plate arranged on the top of the support box, a motor is provided on the support plate, the output end of the motor is arranged parallel to the rotating shaft, a gear 1 is provided on the output end of the motor, the gear 1 meshes with the tooth portion, and a gear 2 is provided on the output end of the motor, the gear 2 meshes with the brake mechanism 1.

[0009] Furthermore, the braking mechanism 1 includes a support rod 2 vertically arranged on the top of the supporting box body, a support rod 1 parallel to the rotating shaft is arranged on the top of the support rod 2, a support plate symmetrically arranged at both ends of the support rod 1 is arranged at the bottom of the support rod 1, a slide rail is arranged between the two support plates at the bottom of the support rod 1, a screw rod is rotatably arranged on the two support plates, a gear 3 is arranged in the middle of the screw rod, a threaded portion 1 and a threaded portion 2 with opposite thread directions are respectively arranged on the two ends of the screw rod, and two brake plates symmetrically arranged are threadedly connected on the threaded portion 1 and the threaded portion 2.

[0010] Furthermore, the brake plate includes a plate surface, a slider is provided on the top of the plate surface, the slider can be slidably connected to the slide rail, a sleeve is provided on the side close to the bottom of the two plate surfaces, a blind hole is provided on the side of the sleeve away from the plate surface, a spring three is provided in the blind hole, two ends of the spring three are respectively connected to the bottom of the blind hole and one end of the brake block, a brake pad is provided on the other end of the brake block, and the brake disc is provided between the two brake pads.

[0011] Furthermore, the cooling mechanism includes a water tank and a Z-shaped frame, the Z-shaped frame includes a top horizontal part, a vertical part and a bottom horizontal part connected in sequence, the water tank includes a side plate perpendicular to the rotating shaft, the side plate is provided with a through hole adapted to the top horizontal part, a water outlet is provided at the bottom of the water tank, the water outlet pipeline is connected to the nozzle, a triangular block is provided at the end of the top horizontal part, the triangular block abuts the inclined surface of the cone, a spring four is sleeved on the top horizontal part, the two ends of the spring four are respectively connected to the triangular block and the side plate, the bottom horizontal part is slidably connected to the top of the water tank bottom plate, the bottom horizontal part is connected to the water outlet, the cone moves downward to push the bottom horizontal part to slide so that the water outlet is connected to the inside of the water tank.

[0012] Furthermore, a nozzle is respectively provided on one side of the two plate surfaces close to each other and on two inner walls of the supporting box body parallel to the rotating shaft.

[0013] Furthermore, connecting holes are provided on two inner walls of the supporting box body which are perpendicular to the rotating shaft, and the rotating shaft is rotatably provided in the two connecting holes.

[0014] The present invention has the following beneficial effects: the reaction is faster through motor drive, and a brake mechanism one and a brake mechanism two are provided, so that the braking is faster and the situation where there is no other braking means after the failure of one of the brake mechanisms is prevented, thereby ensuring safety; in addition, a cooling mechanism is provided, and the cooling mechanism is mechanically connected to the brake mechanism, so that cooling water can react quickly and stably during braking, thereby preventing the device from overheating and softening, and ensuring the stability of the brake mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a stereogram of the whole device;

[0016] Figure 2 It is a three-dimensional diagram of the device after removing the supporting box;

[0017] Figure 3 is a three-dimensional diagram of brake mechanism 2;

[0018] Figure 4 It is a three-dimensional diagram of the support box and the toggle lever;

[0019] Figure 5 This is an exploded view of the cooling mechanism and the toggle lever;

[0020] Figure 6 is a three-dimensional diagram of brake mechanism 2;

[0021] Parts number:

[0022] Rotating shaft 1, brake disc 2, support box 3, connecting hole 302, hollow column 303, through hole 304, driving mechanism 4, support plate 401, motor 402, gear 1 403, gear 2 404, toggle rod 5, cone 501, slide bar 502, spring 2 503, abutment block 504, tooth portion 505, brake mechanism 1 6, support rod 1 601, slide rail 602, support sheet 603, slider 605, plate surface 606, sleeve 607, spring 3 608, brake Moving block 609, brake pad 610, gear three 611, threaded portion one 612, threaded portion two 613, support rod two 614, screw 615, nozzle 7, cooling mechanism 8, water tank 801, side plate 802, perforation 803, water outlet 804, Z-shaped frame 805, spring four 806, triangular block 807, brake mechanism two 9, fixed block 901, spring one 902, connecting rod 903, fixing rod 904, connecting block 905, brake pad 906, and collar 907. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0024] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] like Figure 1-6As shown, the commercial vehicle braking device includes a support box 3, a brake mechanism 1 6, a brake mechanism 2 9, a drive mechanism 4 and a cooling mechanism 8. The support box 3 is penetrated by a horizontally arranged rotating shaft 1, a brake disc 2 is fixedly arranged at one end of the rotating shaft 1, the cooling mechanism 8 is arranged in the support box 3, a toggle rod 5 is penetrated by the top of the support box 3, the output end of the toggle rod 5 is connected to the cooling mechanism 8 and the brake mechanism 2 9, the support box 3 is provided with a brake mechanism 2 9, the brake mechanism 2 9 is connected to the rotating shaft 1 at its braking end, the output end of the drive mechanism 4 is connected to the toggle rod 5 and the brake mechanism 1 6, and the brake mechanism 1 6 is connected to the brake disc 2 at its braking end. The support box 3 is fixedly arranged on the chassis of the automobile. When the motor 402 is working, the output end drives the toggle rod 5 to move downward, drives the top of the brake mechanism 2 9 to move outward, thereby driving the bottom to move inward, and the brake pad 906 and the ring 907 rub against each other to slow down or stop the rotation of the rotating shaft 1. At the same time, the output end of the motor 402 drives the screw 615 to rotate, drives the plate surfaces 606 at both ends to approach the middle, so that the brake pad 610 and the brake disc 2 rub against each other to slow down or stop the rotation of the brake disc 2; when the motor 402 stops working, the spring 2 503 pushes the toggle rod 5 to move upward, and the spring 1 902 pushes the top of the brake mechanism 2 9 to move inward, so that the brake pad 906 and the ring 907 are separated, and at the same time, the output end of the motor 402 rotates in the opposite direction to drive the plate surface 606 to move toward both ends, so that the brake pad 610 is separated from the brake disc 2.

[0026] like Figure 2-4As shown, the toggle rod 5 includes a slide rod 502, a cone 501 is provided at the bottom of the slide rod 502, and the large end of the cone 501 faces upward; the brake mechanism 9 includes two vertically arranged V-shaped connecting rods 903, the middle parts of the two connecting rods 903 are rotatably connected to the fixed rod 904, and the two ends of the fixed rod 904 are fixedly arranged on the two inner walls of the support box 3 perpendicular to the rotating shaft 1, and the tops of the two connecting rods 903 are symmetrically provided with fixed blocks 901 on one side close to each other, and the tops of the two connecting rods 903 are symmetrically provided with springs 901 on one side away from each other. 02, the other ends of the two springs 902 are respectively connected to the two inner walls parallel to the rotating shaft 1, and the two connecting rods 903 are symmetrically provided with connecting blocks 905 at the bottom, and the two connecting blocks 905 are provided with an arc-shaped groove on the side close to each other, and a ring 907 is fixedly provided on the rotating shaft 1, and an arc-shaped brake pad 906 with a size suitable for the ring 907 is provided in the groove; the cone 501 is located between the two fixed blocks 901, and when the cone 501 moves downward, it drives the two fixed blocks 901 away from each other so that the two brake pads 906 abut against the ring 907. The two connecting rods 903 are located in the same plane and are cross-set in the middle. The arc surface of the cone 501 is connected to the fixed block 901. The fitting surface of the fixed block 901 and the cone 501 is an adaptive arc surface to reduce the pressure on the material. The spring 1 902 makes the connecting rod 903 tend to move inward. The two V-shaped connecting rods 903 are symmetrically arranged. When the cone 501 moves downward, it pushes the fixed block 901 to move outward, and the connecting block 905 in the lower part will move inward under the push of the upper part, so that the brake pad 906 is close to the ring 907 and rubs.

[0027] like Figure 4 As shown, a hollow column 303 is vertically provided at the center of the top of the support box 3, and a through hole 304 is provided on the top of the hollow column 303 to communicate with the interior of the support box 3; the toggle rod 5 includes a slide bar 502, a contact block 504 is provided on the top of the slide bar 502, and a tooth portion 505 is provided on the top of the contact block 504. A spring 2 503 is sleeved on the slide bar 502, and the slide bar 502 is slidably arranged in the through hole 304. The two ends of the spring 2 503 are respectively connected to the bottom of the contact block 504 and the top of the hollow column 303. The large end diameters of the contact block 504 and the cone 501 are larger than the aperture of the through hole 304 to prevent the slide bar 502 from detaching from the hollow column 303. The spring 2 503 is always in a compressed state. When there is no external force, the large end top of the cone 501 is close to the top wall of the support box 3, and the arc surface part of the cone 501 is in contact with the fixed block 901 and the triangular block 807.

[0028] like Figure 1 , 2As shown, the driving mechanism 4 includes a supporting plate 401 arranged on the top of the supporting box 3, a motor 402 is arranged on the supporting plate 401, an output end of the motor 402 is arranged parallel to the rotating shaft 1, a gear 1 403 is arranged on the output end of the motor 402, the gear 1 403 is engaged with the tooth portion 505, a gear 2 404 is arranged on the output end of the motor 402, the gear 2 404 is engaged with the gear 3 611, when the motor 402 rotates, it will drive the gear 3 611 to rotate, thereby driving the plate surface 606 to move inward, and at the same time, it will drive the toggle rod 5 to move downward through the tooth portion 505.

[0029] like Figure 6 As shown, the brake mechanism 6 includes a support rod 2 614 vertically arranged on the top of the support box 3, a support rod 1 601 parallel to the rotating shaft 1 is provided on the top of the support rod 2 614, and support plates 603 symmetrically arranged at both ends are provided at the bottom of the support rod 1 601, a slide rail 602 is provided between the two support plates 603 at the bottom of the support rod 1 601, a screw rod 615 is rotatably provided on the two support plates 603, a gear 3 611 is provided in the middle of the screw rod 615, a threaded portion 1 612 and a threaded portion 2 613 with opposite thread directions are respectively provided on the screw 615 at both ends of the gear 3 611, and two brake plates symmetrically arranged are threadedly connected on the threaded portion 1 612 and the threaded portion 2 613. The brake plate includes a plate surface 606, a slider 605 is provided on the top of the plate surface 606, and the slider 605 can be slidably connected to the slide rail 602. A sleeve 607 is provided on the side close to the bottom of the two plate surfaces 606, and a blind hole is provided on the side of the sleeve 607 away from the plate surface 606. A spring three 608 is provided in the blind hole, and the two ends of the spring three 608 are respectively connected to the bottom of the blind hole and one end of the brake block 609. A brake pad 610 is provided at the other end of the brake block 609, and the brake disc 2 is provided between the two brake pads 610.

[0030] like Figure 1 , 25, the cooling mechanism 8 includes a water tank 801 and a Z-shaped frame 805, the Z-shaped frame 805 includes a top horizontal portion, a vertical portion and a bottom horizontal portion connected in sequence, the water tank 801 includes a side plate 802 perpendicular to the rotating shaft 1, the side plate 802 is provided with a perforation 803 adapted to the top horizontal portion, the bottom of the water tank 801 is provided with a water outlet 804, the water outlet 804 is connected to the nozzle 7 through a pipeline, and the end of the top horizontal portion is provided with a triangular block 807 The triangular block 807 abuts against the inclined surface of the cone 501, a spring 806 is sleeved on the top horizontal part, and the two ends of the spring 806 are respectively connected to the triangular block 807 and the side plate 802, the bottom horizontal part is slidably connected to the top of the bottom plate of the water tank 801, and the bottom horizontal part is connected to the water outlet 804. The cone 501 moves downward to push the bottom horizontal part to slide so that the water outlet 804 is connected to the inside of the water tank 801. A nozzle 7 is respectively provided on the two inner walls of the support box 3 parallel to the rotating shaft 1 and the side where the two plate surfaces 606 are close to each other. When the motor 402 is not working, the horizontal portion of the bottom end close to the vertical portion just covers the water outlet 804. When the cone 501 moves downward, it pushes the Z-shaped frame 805 to move to the left, gradually opening the water outlet 804, so that the water flows to the nozzle 7. The output end of the nozzle 7 is aligned with the contact surface of the brake pad 906 and the ring 907, and the contact surface of the brake pad 610 and the brake disc 2 to cool them down.

[0031] like Figure 1 , 4 As shown, the supporting box body 3 is provided with connecting holes 302 on the two inner walls perpendicular to the rotating shaft 1 , and the rotating shaft 1 is rotatably arranged in the two connecting holes 302 .

[0032] Working principle: When the driver presses the pedal, the motor 402 starts to work, driving the toggle rod 5 to move downward, the cone 501 to move downward, pushing the fixed block 901 to move to both sides, pushing the brake pad 906 to move inward and rubbing against the collar 907, so that the shaft 1 is decelerated to stop. At the same time, the motor 402 drives the gear 3 611 (screw 615) to rotate, thereby driving the two plate surfaces 606 to move inward, the brake pad 610 and the brake disc 2 to rub against each other to decelerate the shaft 1 to stop, and the cone 501 pushes the bottom horizontal part of the Z-shaped frame 805 to move to the left, so that the water outlet 804 is opened, and the water tank 8 The water flow in 01 flows into the nozzle 7, and the output end of the nozzle 7 sprays water on the friction part to cool it down; when the motor 402 stops working, the spring two 503 pushes the toggle rod 5 to move upward, the cone 501 moves upward, and the spring one 902 pushes the upper part of the connecting rod 903 to move inward, so that the brake pad 906 is separated from the rotating shaft 1, and at the same time, the screw 615 rotates in the opposite direction, driving the plate surface 606 to move to both sides, so that the brake pad 610 is separated from the brake disc 2. At the same time, under the action of the spring four 806, the horizontal part of the bottom end is pushed to move to the right to cover the water outlet 804, so that it no longer flows water, and the nozzle 7 stops working.

[0033] The embodiments described above are only descriptions of the preferred modes of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations, modifications, and substitutions made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A commercial vehicle braking device, characterized in that: The invention comprises a supporting box (3), a first brake mechanism (6), a second brake mechanism (9), a driving mechanism (4) and a cooling mechanism (8); the supporting box (3) is provided with a horizontally arranged rotating shaft (1); a brake disc (2) is fixedly provided at one end of the rotating shaft (1); the cooling mechanism (8) is arranged in the supporting box (3); a toggle rod (5) is provided at the top of the supporting box (3); the output end of the toggle rod (5) is connected to the cooling mechanism (8) and the second brake mechanism (9); the second brake mechanism (9) is provided in the supporting box (3); the braking end of the second brake mechanism (9) is connected to the rotating shaft (1); the output end of the driving mechanism (4) is connected to the toggle rod (5) and the first brake mechanism (6); the braking end of the first brake mechanism (6) is connected to the brake disc (2).

2. The commercial vehicle brake device according to claim 1, characterized in that: The toggle rod (5) comprises a slide rod (502), a cone (501) is provided at the bottom of the slide rod (502), and the large end of the cone (501) faces upward; the second brake mechanism (9) comprises two vertically arranged V-shaped connecting rods (903), the middle parts of the two connecting rods (903) are rotatably connected to the fixed rod (904), and the two ends of the fixed rod (904) are fixedly arranged on the two inner walls of the support box (3) perpendicular to the rotating shaft (1), and the tops of the two connecting rods (903) are symmetrically provided with fixed blocks (901) on the side close to each other, and the tops of the two connecting rods (903) are symmetrically provided with springs (902) on the side away from each other. The other end of the spring (902) is respectively connected to the two inner walls of the support box (3) parallel to the rotating shaft (1); the bottoms of the two connecting rods (903) are symmetrically provided with connecting blocks (905); the two connecting blocks (905) are provided with an arc-shaped groove on one side close to each other; a ring (907) is fixedly provided on the rotating shaft (1); and an arc-shaped brake pad (906) whose size matches the ring (907) is provided in the groove; the cone (501) is located between the two fixed blocks (901); when the cone (501) moves downward, it drives the two fixed blocks (901) away from each other so that the two brake pads (906) abut against the ring (907).

3. The commercial vehicle brake device according to claim 1, characterized in that: A hollow column (303) is vertically arranged at the center of the top of the support box (3), and a through hole (304) communicating with the interior of the support box (3) is arranged at the top of the hollow column (303); the toggle rod (5) comprises a slide bar (502), a contact block (504) is arranged at the top of the slide bar (502), a tooth portion (505) is arranged at the top of the contact block (504), a second spring (503) is sleeved on the slide bar (502), the slide bar (502) is slidably arranged in the through hole (304), and two ends of the second spring (503) are respectively connected to the bottom of the contact block (504) and the top of the hollow column (303).

4. The commercial vehicle brake device according to claim 1, characterized in that: The driving mechanism (4) comprises a supporting plate (401) arranged on the top of the supporting box (3); a motor (402) is arranged on the supporting plate (401); an output end of the motor (402) is arranged parallel to the rotating shaft (1); a gear 1 (403) is arranged on the output end of the motor (402); the gear 1 (403) meshes with a toothed portion (505); a gear 2 (404) is arranged on the output end of the motor (402); the gear 2 (404) meshes with the braking mechanism 1 (6).

5. The commercial vehicle brake device according to claim 1, characterized in that: The brake mechanism 1 (6) comprises a support rod 2 (614) vertically arranged on the top of the support box (3); the top of the support rod 2 (614) is provided with a support rod 1 (601) parallel to the rotating shaft (1); the bottom of the support rod 1 (601) is provided with support plates (603) symmetrically arranged at both ends; a slide rail (602) is provided between the two support plates (603) at the bottom of the support rod 1 (601); a screw rod (615) is rotatably provided on the two support plates (603); a gear 3 (611) is provided in the middle of the screw rod (615); a threaded portion 1 (612) and a threaded portion 2 (613) with opposite thread directions are respectively provided on the screw rod (615) at both ends of the gear 3 (611); the threaded portion 1 (612) and the threaded portion 2 (613) are threadedly connected to two brake plates symmetrically arranged.

6. The commercial vehicle brake device according to claim 5, characterized in that: The brake plate comprises a plate surface (606), a slider (605) is provided on the top of the plate surface (606), the slider (605) can be slidably connected to the slide rail (602), a sleeve (607) is provided on the side close to the bottom of the two plate surfaces (606), a blind hole is provided on the side of the sleeve (607) away from the plate surface (606), a spring three (608) is provided in the blind hole, two ends of the spring three (608) are respectively connected to the bottom of the blind hole and one end of the brake block (609), a brake pad (610) is provided on the other end of the brake block (609), and the brake disc (2) is provided between the two brake pads (610).

7. The commercial vehicle brake device according to claim 1, characterized in that: The cooling mechanism (8) comprises a water tank (801) and a Z-shaped frame (805), wherein the Z-shaped frame (805) comprises a top horizontal portion, a vertical portion and a bottom horizontal portion which are connected in sequence, wherein the water tank (801) comprises a side plate (802) which is perpendicular to the rotating shaft (1), wherein the side plate (802) is provided with a perforation (803) adapted to the top horizontal portion, wherein a water outlet (804) is provided at the bottom of the water tank (801), wherein a pipeline of the water outlet (804) is connected to a nozzle (7), and a triangular block (807) is provided at the end of the top horizontal portion. ), the triangular block (807) abuts against the inclined surface of the cone (501), a spring four (806) is sleeved on the top horizontal part, the two ends of the spring four (806) are respectively connected to the triangular block (807) and the side plate (802), the bottom horizontal part is slidably connected to the top of the bottom plate of the water tank (801), the bottom horizontal part is connected to the water outlet (804), the cone (501) moves downward to push the bottom horizontal part to slide so that the water outlet (804) is connected to the inside of the water tank (801).

8. The commercial vehicle brake device according to any one of claims 1 and 6, characterized in that: A nozzle (7) is respectively provided on one side of the two plate surfaces (606) close to each other and on two inner walls of the supporting box (3) parallel to the rotating shaft (1).

9. The commercial vehicle brake device according to claim 1, characterized in that: The supporting box (3) has two inner walls perpendicular to the rotating shaft (1) provided with connecting holes (302), and the rotating shaft (1) is rotatably arranged in the two connecting holes (302).

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